Home / 920,045.81-1,378,776.56-784,408.41

Finding the Fourth Proportional to 920,045.81, 1,378,776.56 and 784,408.41

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Solution

The fourth proportional to 920,045.81, 1,378,776.56 and 784,408.41 is: 1,175,510.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,045.81 : 1,378,776.56 = 784,408.41 : x
  2. Step 2: Convert to fraction form
    920,045.81/1,378,776.56 = 784,408.41/x
  3. Step 3: Cross multiply
    920,045.81x = 1,378,776.56 × 784,408.41
  4. Step 4: Simplify right side
    920,045.81x = 1,081,523,925,252.83
  5. Step 5: Solve for x
    x = 1,081,523,925,252.83/920,045.81
  6. Step 6: Final answer
    x = 1,175,510.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.